Home / 13,519,581.45-18,657,022.31-7,407,878.73

Finding the Fourth Proportional to 13,519,581.45, 18,657,022.31 and 7,407,878.73

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Solution

The fourth proportional to 13,519,581.45, 18,657,022.31 and 7,407,878.73 is: 10,222,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519,581.45 : 18,657,022.31 = 7,407,878.73 : x
  2. Step 2: Convert to fraction form
    13,519,581.45/18,657,022.31 = 7,407,878.73/x
  3. Step 3: Cross multiply
    13,519,581.45x = 18,657,022.31 × 7,407,878.73
  4. Step 4: Simplify right side
    13,519,581.45x = 138,208,958,735,384.47
  5. Step 5: Solve for x
    x = 138,208,958,735,384.47/13,519,581.45
  6. Step 6: Final answer
    x = 10,222,872.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.